Hey, I'm Raph

Running the IT infrastructure @ EIFER and building AI tools with Claude Code on the side.

Writing about CUDA and AI infrastructure at rfriedmann.de.

VMware vSphereDockerLinuxAnsibleClaude CodeNetAppEntra IDPenetration Testing

Projects

AI tools, infrastructure automation, and open source utilities.

imp

From-scratch C++/CUDA inference engine for the NVIDIA RTX 5090 (sm_120a) — the best single-GPU backend for agentic AI: tool calling, long-context loops, reasoning and concurrent sub-agents on top of the fastest single-stream decode on the 5090 (beats llama.cpp, at-or-ahead of vLLM on NVFP4). 100% written by Claude Code.

blackwellcppcudafp4gated-deltanet
Cuda352

cplusplus-cuda-graph

Recover the CUDA launch and implicit-destructor edges a syntactic indexer loses, written straight into CodeGraph's SQLite graph. On imp (kekzl/imp, 240k lines of C++/CUDA): kernel launch coverage 74.2% → 99.3%, destructors 0% → 85%. On llm.c, which hides nothing, it adds 0 edges.

ai-agentscall-graphclaude-codecode-graphcode-intelligence
Python

PromptMill

Local-first AI prompt generator with a Gradio UI: 132 tuned roles for video, image, audio, 3D and creative AI tools. Runs uncensored Dolphin LLMs fully offline, auto-scaled to your GPU VRAM. No API keys, no cloud.

aiai-videocomfyuidalledocker
Python5

bienchen

Eine Honigbiene fliegt im Gegenlicht durch eine Sommerwiese — Echtzeit, WebGL2, ohne Build-Schritt

JavaScript

entra-id-secrets-notification

Monitor Entra ID (Azure AD) application secrets and certificates for expiration. Sends alerts via Email, Teams, Slack, or Webhook before credentials expire.

azureazure-adcertificate-monitoringdockerentra-id
Python31

axo

A living, continually learning neuromorphic being — a spiking neural network in C++23/CUDA with purely local plasticity (STDP, R-STDP, and Feedback Alignment instead of backprop). Runs on RTX 5090.

artificial-lifecomputational-neurosciencecppcudafeedback-alignment
Cuda

mailcow-ai-filter

AI-powered email sorting for MailCow - Generate smart Sieve filters automatically using Claude API or local LLMs

aiautomationclaudeemailemail-filter
Python4

MeetingRoomUsageAnalyzer

Analyze meeting room usage via Microsoft Graph API with a React + FastAPI dashboard

TypeScript